We'd like to announce that the Opus codec is now ready for testing. The bit-stream is now is a "pseudo-freeze", which means that unless a problem is found during testing/review, there are no longer any changes planned. The only exception to this are the SILK-mode FEC and the stereo SILK mode, which should be landing in the next few days. Considering that these are not critical features, we felt like the testing phase could already begin.

Now the Opus codec supports three mores, one of which is identical to CELT 0.11, which was just released (not announced officially yet).

It would be nice if the HA community could help test this codec. Opus targets a very wide range of bit-rates, from 6 kb/s narrowband speech up to 510 kb/s stereo music. Perhaps a 64-96 kb/s stereo music test would be interesting to do. Anyone would like to help?

not sure if this is a bug or if it's meant to be, but the current opus-tools ("current" meaning the latest downloadable from people.xiph.org) does not accept piped input. at least, not in foobar2000. I had to use the %s for temporary file input instead. and I'm referring specifically to opusenc.exe...

also, I second the motion for a foobar2000 decoder, but I'm sure it will be available when opus is stable anyway.

not sure if this is a bug or if it's meant to be, but the current opus-tools ("current" meaning the latest downloadable from people.xiph.org) does not accept piped input. at least, not in foobar2000. I had to use the %s for temporary file input instead. and I'm referring specifically to opusenc.exe...

also, I second the motion for a foobar2000 decoder, but I'm sure it will be available when opus is stable anyway.

It _should_ accept piped input and does when run in wine. It automatically ignores the wav length. Is it crashing for you or just giving truncated files?

A foobar2000 decoder won't be available no one creates one. I'm not aware of anyone working on it. I'd be glad to answer questions / review code to help make that happen. Anyone who works on it should make sure it plays the testvectors at http://people.xiph.org/~greg/opus_testvectors/ (will be posted on the opus site when the set of tests are complete)